Preventive effects of glycyrrhizin on estrogen-related endometrial carcinogenesis in mice

Kenji Niwa1, Zenglin Lian, Kyoko Onogi

  • 1Department of Obstetrics and Gynecology, Gifu University School of Medicine, Gifu 501-1194, Japan. kniwa@gifu-u.ac.jp

Oncology Reports
|February 3, 2007
PubMed

Insights

Glycyrrhizae radix (Gl radix) and its main component glycyrrhizin (GL) show promise in preventing endometrial cancer. These compounds significantly reduced cancer incidence and key inflammatory markers in a mouse model.

Area of Science:

  • Oncology
  • Pharmacology
  • Natural Products

Background:

  • Endometrial cancer is a significant health concern.
  • Estradiol (E2) plays a role in endometrial carcinogenesis.
  • Glycyrrhizae radix (Gl radix) has shown prior inhibitory effects on endometrial carcinogenesis.

Purpose of the Study:

  • To clarify the effects of Gl radix and glycyrrhizin (GL) on E2-related endometrial carcinogenesis.
  • To investigate the molecular mechanisms underlying the preventive effects of Gl radix and GL.

Main Methods:

  • Mouse models of endometrial carcinogenesis were utilized.
  • The effects of Gl radix and GL on COX-2, IL-1alpha, and TNF-alpha mRNA expression were assessed.
  • The incidence of endometrial adenocarcinoma was evaluated.

Main Results:

  • Both Gl radix and GL significantly decreased COX-2, IL-1alpha, and TNF-alpha mRNA expression.
  • GL treatment resulted in a significant decrease in endometrial adenocarcinoma incidence.
  • The findings suggest GL is responsible for the preventive effects of Gl radix.

Conclusions:

  • Glycyrrhizae radix and glycyrrhizin demonstrate chemopreventive potential against endometrial cancer.
  • The mechanism involves the suppression of COX-2, IL-1alpha, and TNF-alpha.
  • Gl radix and GL are promising candidates for human endometrial cancer chemoprevention.